DO NOT MERGE : Update Security String to 2017-05-05 on lmp-dev am: baf29229ca  -s ours am: 9921f826fe am: 88ba3a3bf8  -s ours am: fc869b58e8 am: 959da97bba am: 7f4fbb79ac am: 9754351b7c  -s ours am: f727c7433b am: 9525d910c7 am: 00bec5014e
am: cc1c6b5013

Change-Id: I0448ab5b0fbc8e87271ba69bba85ded23c3d6368